design evidence #320,098,754: the crossover food and air tubes in humans

Sea cucumbers also practice anal respiration; they have similar sets of pouches coming out from their hindguts into their bodies.[This message has been edited by lpetrich, 02-07-2003]

Actually, a simple way to construct a choke-resistant respiratory tract is as follows:Have the trachea be behind the esophagus instead of in front of it, with the bronchi encircling the esophagus. The trachea can then open into the top rear of the mouth, conveniently away from the food path.

???And non-intersecting respiratory and digestive pathways are not an absolute impossibility; cetaceans have them. So if a dolphin can swallow and breathe at the same time, why can't we?

Sonnikke:
I have yet to see a human come up with a better design than God.Actually, our techological systems often improve on many biological systems in various ways.Compare a motorcycle to a horse. The motorcycle has these pluses:It can travel much faster.
It never gets tired.
It never needs to sleep, even though it can.
It has very low basal metabolism (battery leakage).
It has more convenient excrement (exhaust).
It cannot panic or get startled.
It's easy to perform organ transplants on one.Though the motorcycle has these minuses:It cannot reproduce itself.
It cannot make itself travel on its own initiative.
It has very limited senses (fuel level, speed, etc.).
It's much more noisy.

Sonnikke:

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And a motorcycle was designed by an intelligent designer.
Usually evo's frown upon me when I use inanimate designed objects as an analogy of evidence to God's design in this universe, but hey.

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You had asked if we terrible original sinners could design anything more efficient than biological systems. And I provided you with an example -- motorcycles vs. horses as vehicles. Now you whine that I had used an example of human design.Furthermore, motorcycles and their parts have had numerous designers over the years -- and biological systems had also had numerous designers if their features had been designed.